Mercurial > pytave
annotate pyexec.cc @ 406:16e79a1e96b8
Eliminate all remaining uses of "using namespace"
* octave_to_python.cc, pycall.cc, pyeval.cc, pyexec.cc, python_to_octave.cc:
Eliminate all remaining uses of "using namespace", use fully qualified class
and function names from Boost.
author | Mike Miller <mtmiller@octave.org> |
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date | Mon, 01 May 2017 08:41:01 -0700 |
parents | 478d83448b0b |
children | 95c6ad0be828 |
rev | line source |
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161 | 1 /* |
2 | |
3 Copyright (C) 2016 Colin B. Macdonald | |
4 | |
5 This file is part of Pytave. | |
6 | |
7 Pytave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
9 Free Software Foundation; either version 3 of the License, or (at your | |
10 option) any later version. | |
11 | |
12 Pytave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
18 along with Pytave; see the file COPYING. If not, see | |
19 <http://www.gnu.org/licenses/>. | |
20 | |
21 */ | |
22 | |
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23 #if defined (HAVE_CONFIG_H) |
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24 # include <config.h> |
161 | 25 #endif |
26 | |
27 #include <dlfcn.h> | |
28 #include <boost/python.hpp> | |
29 #include <boost/python/numeric.hpp> | |
30 | |
31 #include <oct.h> | |
32 | |
33 #include "exceptions.h" | |
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34 #include "oct-py-eval.h" |
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35 #include "oct-py-init.h" |
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36 #include "oct-py-util.h" |
161 | 37 #include "python_to_octave.h" |
38 | |
39 DEFUN_DLD (pyexec, args, nargout, | |
40 "-*- texinfo -*-\n\ | |
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41 @deftypefn {} {} pyexec (@var{expr})\n\ |
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42 @deftypefnx {} {} pyexec (@var{expr}, @var{localns})\n\ |
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43 Execute a Python expression or block of code.\n\ |
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44 \n\ |
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45 When called with an optional second argument, @var{localns} is a\n\ |
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46 @code{py.dict} that acts as the namespace for any assignments or other\n\ |
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47 side effects of the expression.\n\ |
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48 \n\ |
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49 Examples:\n\ |
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50 @example\n\ |
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51 @group\n\ |
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52 pyexec (\"print(42)\")\n\ |
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53 @print{} 42\n\ |
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54 @end group\n\ |
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55 @end example\n\ |
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56 @seealso{pycall, pyeval}\n\ |
161 | 57 @end deftypefn") |
58 { | |
59 octave_value_list retval; | |
60 | |
61 int nargin = args.length (); | |
62 | |
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63 if (nargin < 1 || nargin > 2) |
161 | 64 { |
65 print_usage (); | |
66 return retval; | |
67 } | |
68 | |
69 std::string code = args(0).string_value (); | |
70 | |
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71 pytave::py_init (); |
161 | 72 |
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73 PyObject *local_namespace = nullptr; |
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74 if (nargin > 1) |
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75 { |
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76 local_namespace = pytave::pyobject_unwrap_object (args(1)); |
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77 if (! local_namespace) |
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78 error ("pyexec: NAMESPACE must be a valid Python reference"); |
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79 } |
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80 |
161 | 81 try |
82 { | |
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83 // FIXME: figure out exec return code: |
161 | 84 // http://www.boost.org/doc/libs/1_38_0/libs/python/doc/v2/exec.html |
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85 pytave::py_exec_string (code, 0, local_namespace); |
161 | 86 } |
87 catch (pytave::object_convert_exception const &) | |
88 { | |
89 error ("pyexec: error in return value type conversion"); | |
90 } | |
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91 catch (boost::python::error_already_set const &) |
161 | 92 { |
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93 std::string message = pytave::fetch_exception_message (); |
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94 error ("pyexec: %s", message.c_str ()); |
161 | 95 } |
96 return retval; | |
97 } | |
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98 |
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99 /* |
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100 %!error <NameError> |
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101 %! pyexec ("raise NameError ('oops')") |
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102 |
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103 %!error <AttributeError> |
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104 %! pyexec ("import sys") |
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105 %! pyexec ("sys.no_such_thing") |
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106 */ |